Claude Opus 4.8 vs GPT 5.4
Anthropic's most capable Opus yet, built for long-horizon autonomous agents and frontier coding.
OpenAI's latest frontier model, unifying the Codex and GPT lines into one system.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Opus 4.8 vs GPT 5.4▼
Which is better, Claude Opus 4.8 or GPT 5.4?
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Based on the Capability Index, Claude Opus 4.8 scores higher (89.2 vs 87.4). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Claude Opus 4.8 or GPT 5.4?
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GPT 5.4 has a lower blended cost. Claude Opus 4.8: $5.00 input / $25.00 output. GPT 5.4: $2.50 input / $15.00 output.
Which has a larger context window, Claude Opus 4.8 or GPT 5.4?
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GPT 5.4 has a larger context window: Claude Opus 4.8 supports 1M tokens vs GPT 5.4 at 1.1M tokens.
Do both Claude Opus 4.8 and GPT 5.4 support vision?
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Yes, both Claude Opus 4.8 and GPT 5.4 support vision/image input.
Which has better coding performance, Claude Opus 4.8 or GPT 5.4?
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Claude Opus 4.8 scores higher on SWE-bench Verified: Claude Opus 4.8 resolves 89% vs GPT 5.4 at 77%.
What are the key differences between Claude Opus 4.8 and GPT 5.4?
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Claude Opus 4.8 and GPT 5.4 have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.
Which model should I choose for my use case?
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If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Claude Opus 4.8 and GPT 5.4 for free on idapt.app to see which performs better for your specific needs.